2 * Driver for ADAU1701 SigmaDSP processor
4 * Copyright 2011 Analog Devices Inc.
5 * Author: Lars-Peter Clausen <lars@metafoo.de>
6 * based on an inital version by Cliff Cai <cliff.cai@analog.com>
8 * Licensed under the GPL-2 or later.
11 #include <linux/module.h>
12 #include <linux/init.h>
13 #include <linux/i2c.h>
14 #include <linux/delay.h>
15 #include <linux/slab.h>
17 #include <linux/of_gpio.h>
18 #include <linux/of_device.h>
19 #include <sound/core.h>
20 #include <sound/pcm.h>
21 #include <sound/pcm_params.h>
22 #include <sound/soc.h>
27 #define ADAU1701_DSPCTRL 0x1c
28 #define ADAU1701_SEROCTL 0x1e
29 #define ADAU1701_SERICTL 0x1f
31 #define ADAU1701_AUXNPOW 0x22
33 #define ADAU1701_OSCIPOW 0x26
34 #define ADAU1701_DACSET 0x27
36 #define ADAU1701_NUM_REGS 0x28
38 #define ADAU1701_DSPCTRL_CR (1 << 2)
39 #define ADAU1701_DSPCTRL_DAM (1 << 3)
40 #define ADAU1701_DSPCTRL_ADM (1 << 4)
41 #define ADAU1701_DSPCTRL_SR_48 0x00
42 #define ADAU1701_DSPCTRL_SR_96 0x01
43 #define ADAU1701_DSPCTRL_SR_192 0x02
44 #define ADAU1701_DSPCTRL_SR_MASK 0x03
46 #define ADAU1701_SEROCTL_INV_LRCLK 0x2000
47 #define ADAU1701_SEROCTL_INV_BCLK 0x1000
48 #define ADAU1701_SEROCTL_MASTER 0x0800
50 #define ADAU1701_SEROCTL_OBF16 0x0000
51 #define ADAU1701_SEROCTL_OBF8 0x0200
52 #define ADAU1701_SEROCTL_OBF4 0x0400
53 #define ADAU1701_SEROCTL_OBF2 0x0600
54 #define ADAU1701_SEROCTL_OBF_MASK 0x0600
56 #define ADAU1701_SEROCTL_OLF1024 0x0000
57 #define ADAU1701_SEROCTL_OLF512 0x0080
58 #define ADAU1701_SEROCTL_OLF256 0x0100
59 #define ADAU1701_SEROCTL_OLF_MASK 0x0180
61 #define ADAU1701_SEROCTL_MSB_DEALY1 0x0000
62 #define ADAU1701_SEROCTL_MSB_DEALY0 0x0004
63 #define ADAU1701_SEROCTL_MSB_DEALY8 0x0008
64 #define ADAU1701_SEROCTL_MSB_DEALY12 0x000c
65 #define ADAU1701_SEROCTL_MSB_DEALY16 0x0010
66 #define ADAU1701_SEROCTL_MSB_DEALY_MASK 0x001c
68 #define ADAU1701_SEROCTL_WORD_LEN_24 0x0000
69 #define ADAU1701_SEROCTL_WORD_LEN_20 0x0001
70 #define ADAU1701_SEROCTL_WORD_LEN_16 0x0010
71 #define ADAU1701_SEROCTL_WORD_LEN_MASK 0x0003
73 #define ADAU1701_AUXNPOW_VBPD 0x40
74 #define ADAU1701_AUXNPOW_VRPD 0x20
76 #define ADAU1701_SERICTL_I2S 0
77 #define ADAU1701_SERICTL_LEFTJ 1
78 #define ADAU1701_SERICTL_TDM 2
79 #define ADAU1701_SERICTL_RIGHTJ_24 3
80 #define ADAU1701_SERICTL_RIGHTJ_20 4
81 #define ADAU1701_SERICTL_RIGHTJ_18 5
82 #define ADAU1701_SERICTL_RIGHTJ_16 6
83 #define ADAU1701_SERICTL_MODE_MASK 7
84 #define ADAU1701_SERICTL_INV_BCLK BIT(3)
85 #define ADAU1701_SERICTL_INV_LRCLK BIT(4)
87 #define ADAU1701_OSCIPOW_OPD 0x04
88 #define ADAU1701_DACSET_DACINIT 1
90 #define ADAU1701_FIRMWARE "adau1701.bin"
97 static const struct snd_kcontrol_new adau1701_controls[] = {
98 SOC_SINGLE("Master Capture Switch", ADAU1701_DSPCTRL, 4, 1, 0),
101 static const struct snd_soc_dapm_widget adau1701_dapm_widgets[] = {
102 SND_SOC_DAPM_DAC("DAC0", "Playback", ADAU1701_AUXNPOW, 3, 1),
103 SND_SOC_DAPM_DAC("DAC1", "Playback", ADAU1701_AUXNPOW, 2, 1),
104 SND_SOC_DAPM_DAC("DAC2", "Playback", ADAU1701_AUXNPOW, 1, 1),
105 SND_SOC_DAPM_DAC("DAC3", "Playback", ADAU1701_AUXNPOW, 0, 1),
106 SND_SOC_DAPM_ADC("ADC", "Capture", ADAU1701_AUXNPOW, 7, 1),
108 SND_SOC_DAPM_OUTPUT("OUT0"),
109 SND_SOC_DAPM_OUTPUT("OUT1"),
110 SND_SOC_DAPM_OUTPUT("OUT2"),
111 SND_SOC_DAPM_OUTPUT("OUT3"),
112 SND_SOC_DAPM_INPUT("IN0"),
113 SND_SOC_DAPM_INPUT("IN1"),
116 static const struct snd_soc_dapm_route adau1701_dapm_routes[] = {
117 { "OUT0", NULL, "DAC0" },
118 { "OUT1", NULL, "DAC1" },
119 { "OUT2", NULL, "DAC2" },
120 { "OUT3", NULL, "DAC3" },
122 { "ADC", NULL, "IN0" },
123 { "ADC", NULL, "IN1" },
126 static unsigned int adau1701_register_size(struct snd_soc_codec *codec,
130 case ADAU1701_DSPCTRL:
131 case ADAU1701_SEROCTL:
132 case ADAU1701_AUXNPOW:
133 case ADAU1701_OSCIPOW:
134 case ADAU1701_DACSET:
136 case ADAU1701_SERICTL:
140 dev_err(codec->dev, "Unsupported register address: %d\n", reg);
144 static int adau1701_write(struct snd_soc_codec *codec, unsigned int reg,
152 size = adau1701_register_size(codec, reg);
156 snd_soc_cache_write(codec, reg, value);
161 for (i = size + 1; i >= 2; --i) {
166 ret = i2c_master_send(to_i2c_client(codec->dev), buf, size + 2);
175 static unsigned int adau1701_read(struct snd_soc_codec *codec, unsigned int reg)
180 ret = snd_soc_cache_read(codec, reg, &value);
187 static int adau1701_reset(struct snd_soc_codec *codec)
189 struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
190 struct i2c_client *client = to_i2c_client(codec->dev);
193 if (gpio_is_valid(adau1701->gpio_nreset)) {
194 gpio_set_value(adau1701->gpio_nreset, 0);
195 /* minimum reset time is 20ns */
197 gpio_set_value(adau1701->gpio_nreset, 1);
198 /* power-up time may be as long as 85ms */
202 ret = process_sigma_firmware(client, ADAU1701_FIRMWARE);
204 dev_warn(codec->dev, "Failed to load firmware\n");
208 snd_soc_write(codec, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT);
209 snd_soc_write(codec, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR);
214 static int adau1701_set_capture_pcm_format(struct snd_soc_codec *codec,
215 snd_pcm_format_t format)
217 struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
218 unsigned int mask = ADAU1701_SEROCTL_WORD_LEN_MASK;
222 case SNDRV_PCM_FORMAT_S16_LE:
223 val = ADAU1701_SEROCTL_WORD_LEN_16;
225 case SNDRV_PCM_FORMAT_S20_3LE:
226 val = ADAU1701_SEROCTL_WORD_LEN_20;
228 case SNDRV_PCM_FORMAT_S24_LE:
229 val = ADAU1701_SEROCTL_WORD_LEN_24;
235 if (adau1701->dai_fmt == SND_SOC_DAIFMT_RIGHT_J) {
237 case SNDRV_PCM_FORMAT_S16_LE:
238 val |= ADAU1701_SEROCTL_MSB_DEALY16;
240 case SNDRV_PCM_FORMAT_S20_3LE:
241 val |= ADAU1701_SEROCTL_MSB_DEALY12;
243 case SNDRV_PCM_FORMAT_S24_LE:
244 val |= ADAU1701_SEROCTL_MSB_DEALY8;
247 mask |= ADAU1701_SEROCTL_MSB_DEALY_MASK;
250 snd_soc_update_bits(codec, ADAU1701_SEROCTL, mask, val);
255 static int adau1701_set_playback_pcm_format(struct snd_soc_codec *codec,
256 snd_pcm_format_t format)
258 struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
261 if (adau1701->dai_fmt != SND_SOC_DAIFMT_RIGHT_J)
265 case SNDRV_PCM_FORMAT_S16_LE:
266 val = ADAU1701_SERICTL_RIGHTJ_16;
268 case SNDRV_PCM_FORMAT_S20_3LE:
269 val = ADAU1701_SERICTL_RIGHTJ_20;
271 case SNDRV_PCM_FORMAT_S24_LE:
272 val = ADAU1701_SERICTL_RIGHTJ_24;
278 snd_soc_update_bits(codec, ADAU1701_SERICTL,
279 ADAU1701_SERICTL_MODE_MASK, val);
284 static int adau1701_hw_params(struct snd_pcm_substream *substream,
285 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
287 struct snd_soc_codec *codec = dai->codec;
288 snd_pcm_format_t format;
291 switch (params_rate(params)) {
293 val = ADAU1701_DSPCTRL_SR_192;
296 val = ADAU1701_DSPCTRL_SR_96;
299 val = ADAU1701_DSPCTRL_SR_48;
305 snd_soc_update_bits(codec, ADAU1701_DSPCTRL,
306 ADAU1701_DSPCTRL_SR_MASK, val);
308 format = params_format(params);
309 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
310 return adau1701_set_playback_pcm_format(codec, format);
312 return adau1701_set_capture_pcm_format(codec, format);
315 static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai,
318 struct snd_soc_codec *codec = codec_dai->codec;
319 struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
320 unsigned int serictl = 0x00, seroctl = 0x00;
323 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
324 case SND_SOC_DAIFMT_CBM_CFM:
325 /* master, 64-bits per sample, 1 frame per sample */
326 seroctl |= ADAU1701_SEROCTL_MASTER | ADAU1701_SEROCTL_OBF16
327 | ADAU1701_SEROCTL_OLF1024;
329 case SND_SOC_DAIFMT_CBS_CFS:
335 /* clock inversion */
336 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
337 case SND_SOC_DAIFMT_NB_NF:
338 invert_lrclk = false;
340 case SND_SOC_DAIFMT_NB_IF:
343 case SND_SOC_DAIFMT_IB_NF:
344 invert_lrclk = false;
345 serictl |= ADAU1701_SERICTL_INV_BCLK;
346 seroctl |= ADAU1701_SEROCTL_INV_BCLK;
348 case SND_SOC_DAIFMT_IB_IF:
350 serictl |= ADAU1701_SERICTL_INV_BCLK;
351 seroctl |= ADAU1701_SEROCTL_INV_BCLK;
357 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
358 case SND_SOC_DAIFMT_I2S:
360 case SND_SOC_DAIFMT_LEFT_J:
361 serictl |= ADAU1701_SERICTL_LEFTJ;
362 seroctl |= ADAU1701_SEROCTL_MSB_DEALY0;
363 invert_lrclk = !invert_lrclk;
365 case SND_SOC_DAIFMT_RIGHT_J:
366 serictl |= ADAU1701_SERICTL_RIGHTJ_24;
367 seroctl |= ADAU1701_SEROCTL_MSB_DEALY8;
368 invert_lrclk = !invert_lrclk;
375 seroctl |= ADAU1701_SEROCTL_INV_LRCLK;
376 serictl |= ADAU1701_SERICTL_INV_LRCLK;
379 adau1701->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
381 snd_soc_write(codec, ADAU1701_SERICTL, serictl);
382 snd_soc_update_bits(codec, ADAU1701_SEROCTL,
383 ~ADAU1701_SEROCTL_WORD_LEN_MASK, seroctl);
388 static int adau1701_set_bias_level(struct snd_soc_codec *codec,
389 enum snd_soc_bias_level level)
391 unsigned int mask = ADAU1701_AUXNPOW_VBPD | ADAU1701_AUXNPOW_VRPD;
394 case SND_SOC_BIAS_ON:
396 case SND_SOC_BIAS_PREPARE:
398 case SND_SOC_BIAS_STANDBY:
399 /* Enable VREF and VREF buffer */
400 snd_soc_update_bits(codec, ADAU1701_AUXNPOW, mask, 0x00);
402 case SND_SOC_BIAS_OFF:
403 /* Disable VREF and VREF buffer */
404 snd_soc_update_bits(codec, ADAU1701_AUXNPOW, mask, mask);
408 codec->dapm.bias_level = level;
412 static int adau1701_digital_mute(struct snd_soc_dai *dai, int mute)
414 struct snd_soc_codec *codec = dai->codec;
415 unsigned int mask = ADAU1701_DSPCTRL_DAM;
423 snd_soc_update_bits(codec, ADAU1701_DSPCTRL, mask, val);
428 static int adau1701_set_sysclk(struct snd_soc_codec *codec, int clk_id,
429 int source, unsigned int freq, int dir)
434 case ADAU1701_CLK_SRC_OSC:
437 case ADAU1701_CLK_SRC_MCLK:
438 val = ADAU1701_OSCIPOW_OPD;
444 snd_soc_update_bits(codec, ADAU1701_OSCIPOW, ADAU1701_OSCIPOW_OPD, val);
449 #define ADAU1701_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | \
450 SNDRV_PCM_RATE_192000)
452 #define ADAU1701_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
453 SNDRV_PCM_FMTBIT_S24_LE)
455 static const struct snd_soc_dai_ops adau1701_dai_ops = {
456 .set_fmt = adau1701_set_dai_fmt,
457 .hw_params = adau1701_hw_params,
458 .digital_mute = adau1701_digital_mute,
461 static struct snd_soc_dai_driver adau1701_dai = {
464 .stream_name = "Playback",
467 .rates = ADAU1701_RATES,
468 .formats = ADAU1701_FORMATS,
471 .stream_name = "Capture",
474 .rates = ADAU1701_RATES,
475 .formats = ADAU1701_FORMATS,
477 .ops = &adau1701_dai_ops,
478 .symmetric_rates = 1,
482 static const struct of_device_id adau1701_dt_ids[] = {
483 { .compatible = "adi,adau1701", },
486 MODULE_DEVICE_TABLE(of, adau1701_dt_ids);
489 static int adau1701_probe(struct snd_soc_codec *codec)
493 codec->control_data = to_i2c_client(codec->dev);
495 ret = adau1701_reset(codec);
502 static struct snd_soc_codec_driver adau1701_codec_drv = {
503 .probe = adau1701_probe,
504 .set_bias_level = adau1701_set_bias_level,
505 .idle_bias_off = true,
507 .reg_cache_size = ADAU1701_NUM_REGS,
508 .reg_word_size = sizeof(u16),
510 .controls = adau1701_controls,
511 .num_controls = ARRAY_SIZE(adau1701_controls),
512 .dapm_widgets = adau1701_dapm_widgets,
513 .num_dapm_widgets = ARRAY_SIZE(adau1701_dapm_widgets),
514 .dapm_routes = adau1701_dapm_routes,
515 .num_dapm_routes = ARRAY_SIZE(adau1701_dapm_routes),
517 .write = adau1701_write,
518 .read = adau1701_read,
520 .set_sysclk = adau1701_set_sysclk,
523 static int adau1701_i2c_probe(struct i2c_client *client,
524 const struct i2c_device_id *id)
526 struct adau1701 *adau1701;
527 struct device *dev = &client->dev;
528 int gpio_nreset = -EINVAL;
531 adau1701 = devm_kzalloc(dev, sizeof(*adau1701), GFP_KERNEL);
536 gpio_nreset = of_get_named_gpio(dev->of_node, "reset-gpio", 0);
537 if (gpio_nreset < 0 && gpio_nreset != -ENOENT)
541 if (gpio_is_valid(gpio_nreset)) {
542 ret = devm_gpio_request_one(dev, gpio_nreset, GPIOF_OUT_INIT_LOW,
548 adau1701->gpio_nreset = gpio_nreset;
550 i2c_set_clientdata(client, adau1701);
551 ret = snd_soc_register_codec(&client->dev, &adau1701_codec_drv,
556 static int adau1701_i2c_remove(struct i2c_client *client)
558 snd_soc_unregister_codec(&client->dev);
562 static const struct i2c_device_id adau1701_i2c_id[] = {
566 MODULE_DEVICE_TABLE(i2c, adau1701_i2c_id);
568 static struct i2c_driver adau1701_i2c_driver = {
571 .owner = THIS_MODULE,
572 .of_match_table = of_match_ptr(adau1701_dt_ids),
574 .probe = adau1701_i2c_probe,
575 .remove = adau1701_i2c_remove,
576 .id_table = adau1701_i2c_id,
579 module_i2c_driver(adau1701_i2c_driver);
581 MODULE_DESCRIPTION("ASoC ADAU1701 SigmaDSP driver");
582 MODULE_AUTHOR("Cliff Cai <cliff.cai@analog.com>");
583 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
584 MODULE_LICENSE("GPL");